User kittygirl

9 votes

1 answer

2k views

Why is 9 kHz the lowest frequency for spectrum analyzers?

frequency spectrum-analyzer

asked Feb 23 at 3:11

5 votes

1 answer

117 views

Gnuradio bandwidth of sink cause signal frequency changed?

asked Aug 26, 2021 at 19:41

5 votes

2 answers

236 views

What cause the spectrum peak of `center frequency`?

gnuradio frequency usrp spectrum-analyzer fosphor

asked Oct 24, 2021 at 7:47

4 votes

2 answers

182 views

Why does a sine wave show two peaks in the frequency domain on GNUradio?

gnuradio frequency transformer waves

asked Sep 2, 2021 at 1:22

3 votes

1 answer

267 views

How to change the display order of qt gui sink in gnuradio?

gnuradio

asked Sep 2, 2021 at 20:22

3 votes

2 answers

208 views

How to make ELF-ULF antenna myself?

antenna antenna-construction antenna-modeling lf ulf

asked Sep 28, 2021 at 16:04

2 votes

1 answer

75 views

How the ELF-VLF background noise spectrum looks like?

antenna frequency spectrum-analyzer vlf ulf

asked Sep 29, 2021 at 8:09

2 votes

4 answers

110 views

What's the methodology of MDF magnetic field antenna?

antenna antenna-theory magnetic-loop near-field

asked Feb 11 at 19:07

2 votes

3 answers

125 views

What cause the shape of frequency spectrum convex or concave?

software-defined-radio gnuradio usrp fosphor

asked Oct 5, 2021 at 17:28

1 vote

3 answers

126 views

What can be used to protect an SDR receiver against bursts?

software-defined-radio rf-power rtl-sdr usrp

asked Feb 1 at 9:22

1 vote

1 answer

85 views

Does GPS port of USRP B210 only used for GPSDO?

usrp gnss

asked Sep 28, 2021 at 16:18

1 vote

2 answers

62 views

What's the `Minimum signal duration` and `Minimum detectable signal duraion` of Ettus B210?

software-defined-radio gnuradio signal-identification

asked Sep 2, 2021 at 20:41

0 votes

4 answers

69 views

What cause `multiply` has difference result between `float` and `complex` signal?

gnuradio frequency theory phased-array transformer

asked Sep 2, 2021 at 21:21

0 votes

2 answers

73 views

How did "rational resample" change the type of wave?

gnuradio

asked Sep 3, 2021 at 15:01

0 votes

1 answer

67 views

Does signal frequency affect the band width of SDR hardware?

software-defined-radio gnuradio frequency bandwidth usrp

asked Sep 3, 2021 at 23:47

0 votes

1 answer

67 views

How to set external clock of `--device-settings` in soapy_power?

software-defined-radio usrp soapysdr

asked Feb 7 at 3:50

0 votes

0 answers

233 views

How to shift frequency with sine signal?

gnuradio frequency usrp

asked Nov 4, 2021 at 17:42

0 votes

2 answers

30 views

Is number of items in`file sink` integer multiple of `sample rate`?

software-defined-radio gnuradio

asked Feb 16 at 18:28

0 votes

1 answer

20 views

what's the usage and benefit of segments in Gnuraio `file meta sink`?

software-defined-radio gnuradio

asked Feb 16 at 17:52

0 votes

1 answer

103 views

Is Gnuradio `file sink` data time domain data or frequency domain data?

software-defined-radio gnuradio frequency bandwidth usrp

asked Mar 15 at 16:30

0 votes

1 answer

84 views

How to use SDR equipment and Gnuraio record `time domain` data?

software-defined-radio gnuradio frequency

asked Apr 5 at 4:37

-1 votes

1 answer

65 views

What's the usage of `Multiply Const 1` and `Multiply Const 0`?

software-defined-radio gnuradio

asked Feb 16 at 18:07

-1 votes

1 answer

47 views

What's the negative float of rtl_power output means?

software-defined-radio gnuradio spectrum-analyzer rtl-power

asked Feb 1 at 8:52

-2 votes

1 answer

66 views

How to know whether aliasing occurs when observe unknown signal?

software-defined-radio signal-identification dsp spectrum-analyzer aliasing

asked Mar 5 at 16:22

-3 votes

1 answer

82 views

GNU Radio does not work expectedly when the frequency is 2x the sample rate

software-defined-radio gnuradio frequency

asked Mar 5 at 4:07

-3 votes

1 answer

121 views

How to record and replay the `center frequency` when `file_sink`?

gnuradio frequency signal-identification usrp

asked Oct 4, 2021 at 21:23

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26 Questions

Why is 9 kHz the lowest frequency for spectrum analyzers?

Gnuradio bandwidth of sink cause signal frequency changed?

What cause the spectrum peak of `center frequency`?

Why does a sine wave show two peaks in the frequency domain on GNUradio?

How to change the display order of qt gui sink in gnuradio?

How to make ELF-ULF antenna myself?

How the ELF-VLF background noise spectrum looks like?

What's the methodology of MDF magnetic field antenna?

What cause the shape of frequency spectrum convex or concave?

What can be used to protect an SDR receiver against bursts?

Does GPS port of USRP B210 only used for GPSDO?

What's the `Minimum signal duration` and `Minimum detectable signal duraion` of Ettus B210?

What cause `multiply` has difference result between `float` and `complex` signal?

How did "rational resample" change the type of wave?

Does signal frequency affect the band width of SDR hardware?

How to set external clock of `--device-settings` in soapy_power?

How to shift frequency with sine signal?

Is number of items in`file sink` integer multiple of `sample rate`?

what's the usage and benefit of segments in Gnuraio `file meta sink`?

Is Gnuradio `file sink` data time domain data or frequency domain data?

How to use SDR equipment and Gnuraio record `time domain` data?

What's the usage of `Multiply Const 1` and `Multiply Const 0`?

What's the negative float of rtl_power output means?

How to know whether aliasing occurs when observe unknown signal?

GNU Radio does not work expectedly when the frequency is 2x the sample rate

How to record and replay the `center frequency` when `file_sink`?